Physics P3 - Chapter 1
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analogue |
Can have any value.
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digital |
Can only have a high or low value.
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binary |
Can only have two values, 0 or 1.
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bit |
A 1 or a 0, from 'binary digit'.
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spectrum |
There are different types of radiation in the electromagnetic spectrum.
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efficient |
Does not waste much energy.
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resistor |
A resistor hinders the flow of current around a circuit.
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sensor |
An electrical component that produces a voltage or changes its resistance when it detects something in the environment, such as a change in temperature.
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circuit |
A circuit is a conducting path, which allows charge to flow from one end to another.
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thermistor |
A device that has a resistance that changes with temperature.
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endoscope |
An endoscope is a cable that allows us to see inside a person.
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X-ray |
Wave of the electromagnetic spectrum used for producing images of bones and tissue.
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uncertainty |
The amount by which you cannot be sure of the value of your measurements because of your measuring instruments or methods.
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radio |
Wave with the lowest energy in the electromagnetic spectrum, used for communicating.
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gamma |
Wave with the highest frequency in the electromagnetic spectrum.
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microwave |
Wave of the electromagnetic spectrum used for heating and for communicating.
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MRI |
(Magnetic Resonance Imaging) A technique for producing images of the inside of the human body using magnetism.
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LED |
(Light-Emitting Diode) An efficient component that gives out light.
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